KR20170067072A - Free form display apparatus - Google Patents

Abstract

The present invention provides a display device having a free form structure with improved formability and a thin bezel width. The display device according to the present invention comprises a display panel having a first through hole, A first hole cover coupled to the back surface of the housing member and having a protrusion inserted into the first and second through holes, and a second hole cover coupled with the protrusion to cover the periphery of the first through hole. have.

Description

{FREE FORM DISPLAY APPARATUS}

The present invention relates to a variant display device.

A typical liquid crystal display device displays an image using a thin film transistor (Thin Film Transistor) as a switching element. Such a liquid crystal display device has advantages advantageous for thinning, and is widely used as a display device for a television or a monitor, as well as a display device for a notebook computer, a tablet computer, a smart phone, a portable display device, and a portable information device.

2. Description of the Related Art In recent years, as the application range of a liquid crystal display device has become various, development of a liquid crystal display device having a shape according to an application field has been demanded. Particularly, in the case of an automobile display, development of a liquid crystal display device having various shapes is required to expand the degree of freedom in interior design of an automobile.

For example, Korean Patent Registration No. 10-2010-1521654 discloses a liquid crystal display device having a circular hole at the center of the screen.

Conventionally, a liquid crystal display device having a hole includes a liquid crystal display panel having a hole provided at the center of the screen and a support main body for housing the liquid crystal display panel.

The support main includes a bottom surface covering the rear surface of the liquid crystal display panel, a cylindrical protrusion protruding from the bottom surface to be inserted into the hole of the liquid crystal display panel, and side walls bending from the edge of the bottom surface to surround the side surface of the liquid crystal display panel do.

Such a conventional liquid crystal display device having a hole has a donut-shaped screen by accommodating a backlight unit having a hole in a support main body and a liquid crystal display panel having a hole, and can be applied to a circular clock of display form.

However, the conventional liquid crystal display having holes has the following problems.

Firstly, there is a limitation in implementing a thin bezel due to the minimum molding thickness of the support main made of a mold material.

Second, when the support main body is made of a metal material, it is difficult to form the support main body into a curved surface because wrinkles are generated in the protruding portions and the side walls of the support main body having a curved surface shape, thereby making it impossible to realize a thin bezel .

Disclosure of Invention Technical Problem [8] Accordingly, the present invention has been made in view of the above problems, and it is an object of the present invention to provide a display device having a free-form mechanism with improved formability and a thin bezel width.

Another object of the present invention is to provide a display device capable of stable coupling between releasing mechanisms.

According to another aspect of the present invention, there is provided a display device including a display panel having a first through-hole, a housing member having a second through-hole, And a second hole cover coupled to the protrusion and covering the periphery of the first through hole.

According to the present invention, a mold release display device having a thin bezel width can be provided while the moldability is improved, sagging of a guide frame for supporting the display panel can be prevented, and stability of engagement between mold release mechanisms can be enhanced.

In addition to the effects of the present invention mentioned above, other features and advantages of the present invention will be described below, or may be apparent to those skilled in the art from the description and the description.

1 is a view illustrating a display device according to a first embodiment of the present invention.
2 is a cross-sectional view taken along the line I-I 'shown in Fig.
3 is an exploded perspective view of the display device shown in Fig.
4 is a cross-sectional view taken along the line II-II 'shown in FIG.
5 is a cross-sectional view taken along line III-III 'shown in FIG.
Fig. 6 is a view for explaining the width of the light source housing disposed in the housing member shown in Fig. 2;
7 is a view for explaining a variant display device according to a second example of the present invention.
8 is a cross-sectional view taken along the line IV-IV 'shown in FIG.
9 is a view for explaining the second curved surface portion of the guide frame shown in FIG. 7 and the third curved surface portion of the housing member.

The meaning of the terms described herein should be understood as follows.

The word " first, "" second," and the like, used to distinguish one element from another, are to be understood to include plural representations unless the context clearly dictates otherwise. The scope of the right should not be limited by these terms. It should be understood that the terms "comprises" or "having" does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof. It should be understood that the term "at least one" includes all possible combinations from one or more related items. For example, the meaning of "at least one of the first item, the second item and the third item" means not only the first item, the second item or the third item, but also the second item and the second item among the first item, Means any combination of items that can be presented from more than one. The term "on" means not only when a configuration is formed directly on top of another configuration, but also when a third configuration is interposed between these configurations.

Hereinafter, preferred embodiments of a display device according to the present invention will be described in detail with reference to the accompanying drawings. In the drawings, like reference numerals are used to denote like elements throughout the drawings, even if they are shown on different drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

1 is a cross-sectional view taken along the line I-I 'of FIG. 1, and FIG. 3 is an exploded perspective view of the display device of FIG. 1, to be.

1 to 3, a variant display device according to a first example of the present invention includes a display panel 100, a guide frame 300, a housing member 500, a first hole cover 700, A cover 900, and a front edge cover 1000.

The display panel 100 includes first and second substrates 110 and 120 that are bonded together. The display panel 100 may be a liquid crystal display panel. In this case, the first substrate 110 is a thin film transistor array substrate, and includes a pixel array portion including a data line, a gate line, and a thin film transistor, And a pad portion 112 connected to the array portion. The second substrate 120 includes a color filter array portion having a color filter corresponding to a pixel, the color filter array substrate being adhered to the first substrate 110 with the liquid crystal layer interposed therebetween. The first substrate 110 includes a lower polarizing film 130 attached to a lower surface thereof and the second substrate 120 includes an upper polarizing film 140 attached to an upper surface thereof.

The pad unit 112 is connected to the panel driving circuit unit 200. The panel driving circuit unit 200 includes a flexible circuit film 210 connected to the pad unit 112, a driving integrated circuit 220 mounted on the flexible circuit film 210 to supply a pixel driving signal to the pixel array unit, And a source printed circuit board (230) connected to the circuit film (210) and supplying digital image data and timing signals supplied from the outside to the drive integrated circuit (220). The flexible circuit film 210 is bent toward the rear side of the housing member 500 while surrounding the side of the display panel 100 and the source printed circuit board 165 is disposed on the rear side of the housing member 500.

The display panel 100 has a free form structure that is not a rectangular shape. The display panel 100 includes a first through hole 100h and a first through hole 100h formed in a display region in which an image is displayed. And may include a first curved portion 102 projecting from one side. Here, the display area (or screen) may be defined as an area other than the first through hole 100h, its periphery, and the edge area.

The first through hole 100h is formed to vertically penetrate the display region in which the image is displayed in the vertical axis direction Z and is biased toward the one side in the central portion of the display region so as not to greatly affect the image displayed in the display region So that it can be disposed at the outer portion of the screen. The first through hole 100h according to an example may be provided at the first side edge portion of the display panel 100 where the pad portion 112 is not provided. For example, the center point of the first through-hole 100h may be defined by a first horizontal axis direction X parallel to the longitudinal direction of the display panel 100, But it is not limited thereto and may be located at any one of the first side edge portions of the display panel 100 for realizing the mold release display.

The first through hole 100h may have a circular shape, but it is not limited thereto and may have various shapes such as a polygonal shape or an elliptical shape.

The first curved surface portion 102 protrudes from one side surface of the display panel 100 and surrounds a part of the first through hole 100h so that the first through hole 100h is formed in the display area of the display panel 100 Have a complete hole shape. The first curved surface portion 102 according to an exemplary embodiment protrudes in a curved shape from one side of the display panel 100 and has a semi-circular shape along with a part of the first through hole 100h on one side of the display panel 100 . For example, the first curved portion 102 may protrude in a semicircular form from one side of the display panel 100. Here, the first curved portion 102 may have a concentric shape with the first through hole 100h.

The display panel 100 may include a first through hole 100h and a first curved portion 102 so that the display panel 100 can be divided into a rectangular display area AA1 and a release display area AA2.

The rectangular display area AA1 may be defined as an area between a virtual one side long side LS and another side long side adjacent to the pad part 112. [

The mold release display area AA2 may be defined as a first side edge portion of the display panel 100 protruding from a virtual one side long side LS. This mold release display area AA2 includes a first through hole 100h and a curved surface portion 102. [ In addition, the side surface between the short side of the display panel 100 and the curved surface portion 102 may be formed of the inclined surface 103 inclined at a constant angle.

The display panel 100 may include a separate structure provided in the first through hole 100h while displaying the image in the rectangular display area AA1 by providing the first through hole 100h in the release display area AA2, For example, an image based on the rotation of the jog shuttle can be displayed in the release display area AA2.

In addition, the display panel 100 may further include a side sealing member 150.

The side sealing members 150 are provided to cover the side surfaces of the display panel 100 except for the second side edge portion of the display panel 100. For example, the side sealing member 150 may include one side short side excluding the other long side of the display panel 100 provided with the pad portion 112, the other long side including the outer side (or the circumferential side) of the curved side 102, And the other side short side of the display panel 100 directly. The side sealing member 150 protects three side surfaces of the display panel 100, which are not covered by a mechanism such as the guide frame 300 and are exposed to the outside of the liquid crystal display device, from an external impact, It serves to prevent lateral light leakage.

The side sealing member 150 may be made of a silicone-based or ultraviolet (UV) curing sealant (or a resin). However, considering the tack time, . The side sealing member 150 may be colored (e.g., blue, red, cyan, or black), but is not limited thereto. For example, the side sealing member 150 may be made of a colored resin or a light blocking resin desirable.

The upper surface of the side sealing member 150 may be covered with the upper polarizing member 140. To this end, three sides of the upper polarizing member 140 may include an extension extending to cover the upper surface of the side sealing member 150 and attached to the upper surface of the side sealing member 150. The junction between the side sealing member 150 and the display panel 100 is concealed by the extended portion of the upper polarizing member 140 and is not exposed to the front surface of the display device.

The guide frame 300 supports the rear edge portion of the display panel 100. At this time, the guide frame 300 is physically coupled to the rear edge portion of the display panel 100 below the display panel 100 without covering the side surface of the display panel 100, in order to reduce the width of the bezel of the display device Thereby exposing the side surfaces of the display panel 100 to the outside of the side of the display device.

The guide frame 300 according to an exemplary embodiment includes a second curved portion 320 protruding from one side to be engaged with a rear edge portion of the first curved portion 102 provided on the display panel 100. The guide frame 300 includes a panel support 310, a second curved portion 320, a first guide sidewall 330, and a second guide sidewall 340. The guide frame 300 having such a configuration has the same shape as the display panel 100.

The panel support 310 is coupled to the rear edge of the display panel 100 except for the first curved portion 102 of the display panel 100. The panel support 310 may have a band shape that overlaps only the rear edge portion of the display panel 100 with one side opened.

The second curved surface portion 320 is connected to one side of the opened panel supporting portion 310 and is engaged with a rear edge portion of the first curved portion 102 provided on the display panel 100. The second curved portion 320 may have the same shape as that of the first curved portion 102 and may have a curved band shape overlapping only the rear edge portion of the first curved portion 102.

The panel supporting portion 310 and the second curved portion 320 are separated from each other for the sake of explanation of the structure. The panel supporting portion 310 and the second curved portion 320 are substantially formed by a single body. (Or upper surface) of the substrate 300. The second curved portion 320 protrudes from one side of the panel supporting portion 310 so as to have the same curved shape as the rear edge portion of the first curved portion 102.

A part 311 of the panel supporting part 310 provided on one side of the guide frame 300 is connected to the second curved part 320 so as to correspond to the inclined surface 103 provided on the display panel 100, .

The first guide sidewall 330 is provided on a rear surface of the panel support 310 and is coupled to a side surface of the housing member 500. The first guide sidewall 330 may be bent to be parallel to the side surface of the housing member 500 from the front edge portion of the panel support 310. Here, the corner portion of the first guide sidewall 330 can be partially removed while being rounded for shape shaping.

The second guide sidewall 340 is provided on the rear surface of the second curved surface 320 and surrounds the side surface of the first hole cover 700. The second guide sidewall 340 may be bent to be parallel to the side surface of the first hole cover 700 from the front edge portion of the second curved surface portion 320. [ Here, the connection portion between the first guide sidewall 330 and the second guide sidewall 340 may be partially rounded while being rounded for shape-shaping.

The guide frame 300 according to an exemplary embodiment may include a metal material. For example, the guide frame 300 may be made of aluminum. Here, the guide frame 300 may include a mold material, but in this case, it must have a minimum thickness for molding, which may increase the width of the bezel. Accordingly, it is preferable that the guide frame 300 is made of a metal material in order to secure rigidity while reducing the bezel width.

In addition, when the guide frame 300 is made of a metal material, the curved second guide sidewall 340 may be bent at the same height as the first guide sidewall 330 due to wrinkles during curved surface molding using L bending, . Accordingly, the second guide sidewall 340 has a height lower than that of the first guide sidewall 330 by forming bending by a height that allows L bending without wrinkles.

The guide frame 300 may be engaged with the rear edge portion of the display panel 100 by the first panel joining member 301. The lower surface of the first panel joining member 301 is physically coupled to the front surface of the panel supporting portion 310 and the second curved surface portion 320 of the guide frame 300, The front surface of the display panel 100 may be physically coupled to the rear edge portion of the display panel 100. The first panel joining member 301 prevents the display panel 100 from being detached from the guide frame 300 and falling down. The first panel joining member 301 according to an exemplary embodiment may be a double-sided tape, a thermosetting adhesive, a photocurable adhesive, a foam tape, or the like, but may be a double-sided tape or a foam tape having a certain elastic force . In addition, the first panel joining member 301 may include a hollow portion. In this case, when the display panel 100 moves while buffering the pressure applied to the display panel 100, And the display panel 100 are prevented from being peeled off.

The housing member 500 is provided to have a second through hole 500h which overlaps with the first through hole 100h provided in the display panel 100 to support the guide frame 300. [ The housing member 500 may include a metal material for improving rigidity and heat radiation characteristics. For example, the housing member 500 may be made of the same aluminum material as the guide frame 300. In addition, the housing member 500 may have the same thickness as the guide frame 300 to reduce the bezel width.

The housing member 500 according to one example includes a housing plate 510, a third curved portion 520, and a housing side wall 530.

The housing plate 510 has a plate shape so as to cover the rear surface of the display panel 100 while having a second through hole 500h which overlaps with the first through hole 100h provided in the display panel 100. [ One side portion 512 of the housing plate 510 which overlaps the first curved portion 102 of the display panel 100 may protrude from the housing plate 510 toward the display panel 100 with a predetermined height have. The one side portion 512 of the housing plate 510 may be fixed to the housing plate 510 by the thickness of the first hole cover 700 so that the rear surface of the first hole cover 700 does not protrude outside the rear surface of the housing plate 510. [ As shown in Fig.

The second through hole 500h is overlapped with the first through hole 100h of the display panel 100 through the one side portion 512 of the housing plate 510 in the vertical axis direction Z. [

The third curved surface portion 520 is formed on one side surface (or first edge portion) of the housing plate 510, more specifically, on the housing plate 510 so as to overlap with the first curved surface portion 102 of the display panel 100, As shown in FIG. At this time, the third curved surface portion 520 has a flat shape having no projecting portion, and has the same curved shape as the first curved portion 102 of the display panel 100. The circumferential surface of the third curved surface portion 520 may have a concentric shape with the second through hole 500h. As such, the third curved surface portion 520 does not have a protruding portion, and therefore does not cause moldability problems.

The housing side wall 530 is bent from the edge portion of the housing plate 510 except for the third curved portion 520 and is engaged with the side surface of the guide frame 300. The housing side wall 530 according to one example may include a first housing side wall HW1 and a plurality of second to fifth housing side walls HW2, HW3, HW4, and HW5.

The first housing side wall HW1 may be bent to be parallel to the side surface of the guide frame 300 from the second edge portion of the housing plate 100 overlapping with the pad portion 112 of the display panel 100. [

Each of the plurality of second housing side walls HW2 is bent from a third edge portion of the housing plate 100 corresponding to one side of the display panel 100 with a predetermined distance in parallel with the side surface of the guide frame 300. [ . The corner portion between the first housing side wall HW1 and the second housing side wall HW2 can be substantially perpendicular. The first housing side wall HW1 and the second housing side wall HW2 which are adjacent to each other are separated from each other for bending.

Each of the plurality of third housing side walls HW3 is bent from a fourth edge portion of the housing plate 100 corresponding to the other short side of the display panel 100 so as to be spaced apart from the side surface of the guide frame 300, . The corner portion between the first housing side wall HW1 and the third housing side wall HW3 may be substantially perpendicular. The first housing side wall HW1 and the third housing side wall HW3 which are adjacent to each other are separated from each other for bending.

Each of the plurality of fourth housing side walls HW4 extends from a left side portion corresponding to one end of the third curved portion 520 of the first edge portion of the housing plate 100 and the second housing side wall HW2, 300 so as to be spaced at regular intervals. Each of the plurality of fourth housing side walls HW4 may have an oblique shape corresponding to the inclined surface 103 provided on the display panel 100. [ The corner portion between the third housing side wall HW3 and the fourth housing side wall HW4 is rounded with a constant curvature and the height of the rounded corner portion is lower than the housing side wall 500 for curved surface molding.

Each of the plurality of fifth housing side walls HW5 extends from the right side portion corresponding to the other end of the third curved portion 520 of the first edge portion of the housing plate 100 and the third housing side wall HW3, May be bent so as to be spaced apart from each other and at regular intervals. Each of the plurality of fifth housing side walls HW5 may have an oblique shape so as to correspond to the inclined surface 103 provided on the display panel 100. [ The corner portion between the third housing side wall HW3 and the fifth housing side wall HW5 is rounded with a certain curvature and the height of the rounded corner portion is lower than the housing side wall 500 for curved surface molding.

The first hole cover 700 includes a protrusion 720 coupled to the rear surface of the housing member 500 and penetrating the second through hole 500h and inserted into the first through hole 100h. The protrusion 720 includes a first hollow portion 700h which overlaps with the first through-hole 100h. The first hole cover 700 may include a material different from the housing member 500 for moldability, for example, a mold material.

The first hole cover 700 according to one example includes a cover plate 710, a protrusion 720, and a cover side wall 730.

The cover plate 710 is provided in a disc shape corresponding to the third curved surface portion 520 of the housing member 500 and is coupled to the rear surface of the housing member 500 to support the third curved surface portion 520. That is, the cover plate 710 is coupled to the rear surface of the housing member 500, which overlaps the periphery of the second through-hole 500h of the housing member 500. [ Here, the cover plate 710 can be coupled to the rear surface of the housing member 500 by a first adhesive member (not shown) such as a double-sided tape or the like, and the first adhesive member has an opening through which the protrusion 720 is inserted It can have a circular band shape.

The protrusion 710 protrudes from the cover plate 710 so as to have the first hollow portion 700h and is inserted into the second through hole 500h of the housing member 500, Hole 100h. A separate mechanism, for example, a rotation shaft of a clock or a jog shuttle, may be inserted into the first hollow portion 700h.

The cover side wall 730 is provided in a curved shape at an outer edge portion of the cover plate 710 to support the second curved surface portion 320 of the guide frame 300. That is, the cover side wall 730 protrudes from the outer edge portion of the cover plate 710 to have the same curved shape as the second curved portion 320. At this time, the upper outer side surface 732 of the cover side wall 730 is stepped so that the second guide side wall 340 provided on the second curved surface portion 320 is separated from the upper outer side surface 732 of the cover side wall 730 And covers the upper outer side surface 732 of the cover side wall 730.

The second hole cover 900 is disposed on the front surface of the display panel 100 so as to be coupled to the first hole cover 700 and covers the periphery of the first through hole 100h of the display panel 100. The second hole cover 900 according to an example includes a panel cover portion 910 and a cover support portion 920.

The panel cover part 910 is provided in the form of a disk having a larger diameter than the first through hole 100h of the display panel 100 and covers the periphery of the first through hole 100h of the display panel 100. [ The panel cover portion 910 includes a second hollow portion 900h which is in communication with the first through hole 100h and overlaps with the first hollow portion 700h provided in the protruding portion 720 of the first hole cover 700, . The panel cover portion 920 may be coupled to the upper surface of the protrusion 720 by a second adhesive member 901 such as a double-sided tape or the like and the second adhesive member 901 may be coupled to the second hollow portion 900h And may have a circular band shape with a corresponding opening. A separate mechanism, for example, a rotation shaft of a clock or a jog shuttle, is inserted into the second hollow portion 900h.

A buffer pad 912 may be attached to the rear surface of the panel cover portion 910. The buffer pad 912 is attached to the rear surface of the panel cover portion 910 facing the display panel 100 to buffer the external force applied to the second hole cover 900 to protect the display panel 100 from external force , Dust or the like is prevented or minimized from penetrating between the display panel 100 and the panel cover portion 910.

The cover supporting portion 920 is cylindrically protruded from the rear surface of the panel cover portion 910 so as to have the second hollow portion 900h and is supported on the upper surface of the protruding portion 720. [ At this time, the upper surface 723 of the protrusion 720 is stepped into a stepped shape, whereby the cover supporting portion 920 is supported on the upper surface 723 of the protrusion 720.

The front edge cover 1000 covers the second side edge portion of the display panel 100 including the pad portion 112 and the side surface of the guide frame 300. The front edge cover 100 can be engaged with the side surface of the guide frame 300 by screws and / or hooks. The front edge cover 1000 hides the panel driving circuit portion 200 connected to the pad portion 112 and the pad portion 112.

In addition, the variant display device according to the first example of the present invention further includes a cover shield 600. The cover shield 600 is coupled to the rear surface of the housing member 500 to cover the source printed circuit board 230 disposed on the rear surface of the housing member 500.

4 and 5, the mold release display device according to the first example of the present invention includes a first fastening member 540, a stopper 550, a second fastening member 350, (360).

The first fastening member 540 is provided on the housing side wall 530 of the housing member 500 and is engaged with the first guide side wall 330 of the guide frame 300. For example, the first fastening member 540 may be an engaging protrusion protruding from the outer wall of the housing side wall 530.

The stopper 550 is bent from the edge of the housing plate 510 except for the third curved portion 520 so as to be spaced apart from the housing side wall 530 of the housing member 500, 1 guide sidewall 330. Here, the stopper 550 may be spaced from the housing side wall 530 by the thickness of the first guide side wall 330. Thus, the first guide sidewall 330 is inserted between the housing side wall 530 and the stopper 550.

The second fastening member 350 is provided on the first guide sidewall 330 of the guide frame 300 and is coupled to the first fastening member 540 of the housing member 500. For example, the second fastening member 350 may be a coupling hole provided in the first guide sidewall 330 so that the first fastening member 540 can be inserted.

The fixed side wall 360 is inserted between the housing side wall 530 and the stopper 550 by being bent concavely from the first guide side wall 330 facing the stopper 550. The stopper 550 supports the outer side wall 360a of the fixed side wall 360 while supporting the rear side (or the lower surface) of the fixed side wall 360 to prevent sagging of the first guide side wall 330, Thereby fixing the position of the side wall 330.

The guide frame 300 and the housing member 500 can be cross hooked by the first fastening member 540, the stopper 550, the second fastening member 350, and the fixed side wall 360, Structure. That is, the fixed side wall 360 provided at the first guide side wall 330 is inserted between the housing side wall 530 and the stopper 550, and the first fastening member 540 and the second fastening member 350 are coupled to each other The first guide sidewall 330 surrounds the housing side wall 530 and the stopper 550 covers the outer side wall 360a while supporting the fixed side wall 360. [ As a result, the first guide sidewall 330 and the housing sidewall 530 are staggeredly coupled by the fixed sidewall 360 and the stopper 550 so that the gap between the first guide sidewall 330 and the housing sidewall 530 The first guide sidewall 330 surrounding the housing sidewall 530 is prevented from being opened from the housing sidewall 530 and the sagging of the guide frame 300 can be prevented.

The first embodiment of the present invention further includes a backlight unit 400 disposed between the housing member 500 and the display panel 100 and through which the protrusion 720 of the first hole cover 700 penetrates, .

The backlight unit 400 is housed in the housing member 500 and irradiates the display panel 100 with light. The backlight unit 400 according to an exemplary embodiment includes a light source housing 410, a reflective sheet 420, a light guide member 430, a light source module 440, and an optical sheet unit 450.

The light source housing 410 is disposed on a part of the bottom surface of the housing member 500. That is, the light source housing 410 is disposed on the other side of the housing plate 510 so as to overlap the rectangular display area AA1 of the display panel 100. [ The light source housing 410 may be fixed to the housing plate 510 by a plurality of screws (not shown).

The light source housing 410 may include a metal material having high thermal conductivity to dissipate heat generated in the backlight unit 400. For example, the light source housing 410 may be made of aluminum. In this case, it is preferable that the light source housing 410 has a thickness twice as thick as the thickness of the housing member 500 made of the same material. 6, the light source housing 410 may be formed to cover the housing member 500 with a width W1 of at least half the width W1 of the housing member 500, for smooth heat radiation from the backlight unit 400. [ And a width W2 that is less than the short side width W1. For example, the light source housing 410 may be disposed between the one side portion 512 of the housing plate 510 protruding from the housing plate 510 and the first housing side wall HW1 for the installation of the first hole cover 700. [ And a width W1 corresponding to the distance. As described above, the light source housing 410 of the present invention is suitable for a heat dissipation structure of a mold-release display device having a thin bezel and a high brightness of 1000 nit or more.

1 to 5, the reflective sheet 420 is disposed on the light source housing 410 and the housing member 500, and the first hole cover 700 is provided with the protrusion 720 of the first hole cover 700, Hole 420h. The reflective sheet 420 has the same shape as the housing plate 510 or the display panel 100 of the housing member 500. The reflective sheet 420 is disposed between the light guide member 430 and the housing member 500 to minimize light loss by reflecting the light emitted to the lower surface of the light guide member 430 toward the light guide member 430 .

The first hole 420h is vertically penetrated through a part of the reflective sheet 420 which overlaps with the second through hole 500h of the housing member 500 along the vertical axis Z. [ The first hole 420h has such a size that the protrusion 720 of the first hole cover 700 can penetrate vertically.

The light guide member 430 includes a second hole 430h disposed on the reflective sheet 420 and overlapping the first hole 420h of the reflective sheet 420. [ The light guide member 430 has the same shape as the reflection sheet 420. The light guiding member 430 advances the light incident from the light source module 440 through the light entering portion provided on at least one side surface in the rear direction of the display panel 100. The side surface of the light guide member 430 facing the fourth and fifth housing side walls HW4 and HW5 of the housing member 500 is formed of an inclined surface 431 inclined at a predetermined angle, The amount of light incident on the periphery of the second hole 430h is increased.

The second hole 430h is vertically penetrated through a part of the light guide member 430 which overlaps with the second through hole 500h of the housing member 500 along the vertical axis Z. [ The second hole 430h may have the same size as the first hole 420h.

Additionally, the light guide member 430 may further include a light path change pattern (not shown). The light path changing pattern is provided on the rear surface of the light guide member 430 and serves to reflect and / or refract light traveling in the light guide member 430 to the display panel 100 by being incident on the light incident portion do. Such a light path changing pattern may have a higher density toward the second hole 430h from the light-incoming portion to uniform the brightness of the light to be emitted. For example, the light path change pattern can be an engraved pattern or a relief pattern having a dot, polygonal, or line shape.

The light source module 440 is disposed in the light source housing 410 so as to face the light entrance portion of the light guide member 430 and emits light to the light entrance portion of the light guide member 430. That is, the light source module 440 is installed on the light source support 410a, which is provided at a predetermined height at the edge portion of the light source housing 410 adjacent to the first housing side wall HW1 of the housing member 500. [ The light source module 440 according to one example includes a light emitting diode array substrate 441, and a plurality of light emitting diodes 442

The light-emitting diode array substrate 441 is attached to the side wall of the light source support portion 410a facing the light-incoming portion of the light guide member 430 by an adhesive member such as a conductive double-sided tape. The light emitting diode array substrate 441 may include a light source driving power line and a light source common power line.

The plurality of light emitting diodes 442 are mounted on the light emitting diode array substrate 441 so as to be spaced apart from each other and are electrically connected to the light source driving power supply line and the light source common power line. The plurality of light emitting diodes 442 emit light by the light source driving power supplied from the light source driving power supply line to the light entrance portion of the light guide member 430. Each of the plurality of light emitting diodes 442 may be fabricated in a light emitting diode package form or a flip chip form and mounted on the light emitting diode array substrate 441.

The optical sheet unit 450 is disposed on the light guide member 430 to improve the brightness characteristic of light emitted from the light guide member 430. For example, the optical sheet portion 450 may include a diffusion sheet, a lower prism sheet, an upper prism sheet, and a dual brightness en- hancement film, but is not limited thereto, A prism sheet, a lenticular sheet, and a double brightness enhancement film.

The optical sheet portion 450 includes a third hole 450h which overlaps with the second hole 430h of the light guide member 430. [ The third hole 450h is provided so as to vertically penetrate a part of the optical sheet portion 450 along the vertical axis Z. [ The third hole 450h may have the same size as the second hole 430h.

The optical sheet part 450 is pressed and fixed by the panel support part 310 of the guide frame 300. The guide frame 300 and the housing member 500 are coupled to each other in the crosshook structure so as to be provided between the first guide sidewall 330 of the guide frame 300 and the side surface of the optical sheet portion 450, The contact area between the optical sheet portion 450 and the panel supporting portion 310 is increased by the gap G between the optical sheet portion 450 and the optical sheet portion 450. As a result, The thermal expansion of the optical sheet portion 450 is ensured by the gap G. As the thermal expansion space of the optical sheet portion 450 is secured by the gap G, The phenomenon can be minimized.

In addition, the backlight unit 400 according to an example further includes first and second reflective members 460 and 470.

The first reflecting member 460 according to one example is attached to the inner wall of the light guide member 430 provided by the second hole 430h. The first reflecting member 460 according to another example may be attached to the protruding portion 720 of the first hole cover 700 facing the inner wall of the light guide member 430 provided by the second hole 430h . The first reflecting member 460 minimizes light loss by reflecting light leaking from the light guide member 430 toward the second hole 430h.

The second reflecting member 470 according to an example is attached to the outer wall except for the light entrance portion of the light guide member 430. The second reflecting member 470 reflects light leaking from the light guide member 430 toward the housing side wall 530, thereby minimizing light loss.

The backlight unit 400 according to an exemplary embodiment may further include a heat dissipation member 460 disposed between the light source housing 410 and the housing plate 510. The heat dissipating member 415 according to an exemplary embodiment may be formed of a material having excellent heat resistance and heat dissipation property such as carbon fiber, acrylic elastomer, graphite, or silicon / ceramic A heat-radiating sheet made of graphite is preferable.

Referring again to Figures 1 to 3, the variant display device according to the first example of the present invention may further include a third hole cover 800. [

The third hole cover 800 is disposed on the front surface of the backlight unit 400 so as to cover the periphery of the third hole 450h of the backlight unit 400, Thereby preventing light leakage due to the space between the protrusions 720 of the cover 700. [

The third hole cover 800 according to an exemplary embodiment includes a third hollow portion 800h having a larger diameter than the protrusion portion 720 of the first hole cover 700 so that the protrusion portion 720 of the first hole cover 700 passes therethrough. As shown in FIG. Here, the third hole cover 800 may have a larger diameter than the second hole cover 900. A separate mechanism, for example, a rotation shaft of a clock or a jog shuttle, is inserted into the third hollow portion 800h.

The third hole cover 800 may be coupled to the protrusion 720 by a third adhesive member 801 such as a double-sided tape or the like. To this end, the protrusion 720 of the first hole cover 700 further includes a cover engaging portion 725 provided to be stepped from the outer wall to be engaged with the third hole cover 800.

The third hole cover 800 is coupled to the rear surface of the display panel 100 covered by the second hole cover 900 around the first through hole 100h by the second panel joining member 802 . The second panel joining member 802 may be made of the same material as the first panel joining member 802 described above. Accordingly, the display panel 100 is coupled to the front surface of the guide frame 300 and the third hole cover 800 by the first and second panel joining members 301 and 802, respectively, .

1 to 3, a method of assembling a mold-releasing display device according to a first embodiment of the present invention will now be described.

First, the light source housing 410 and the light source module 440 are assembled on the housing member 500.

The protrusion 720 of the first hole cover 700 is aligned with the second through hole 500h of the housing member 500 and then the first hole cover 700 is coupled to the rear surface of the housing member 500 do.

After the protrusion 720 of the first hole cover 700 passing through the second through hole 500h of the housing member 500 and the first hole 420h of the reflective sheet 420 are aligned, (420) on the housing member (500) and the light source housing (410).

After the protrusion 720 of the first hole cover 700 passing through the first hole 420h of the reflective sheet 420 and the second hole 430h of the light guide member 430 are aligned, And the member 430 is placed on the reflection sheet 420.

The protrusion 720 of the first hole cover 700 passing through the second hole 430h of the light guide member 430 is aligned with the third hole 450h of the optical sheet portion 450, The seat portion 450 is seated on the light guide member 430.

Next, the third hole cover 800 is coupled to the protruding portion 720 of the first hole cover 700 penetrating the third hole 450h of the optical sheet portion 450.

The fastening member 540 and the stopper 550 provided on the housing member 500 and the second fastening member 350 provided on the guide frame 300 and the fastening sidewall 360 The housing member 500 and the guide frame 300 are coupled to each other.

The first panel joining member 301 is formed on the front surface of the guide frame 300 and the second panel joining member 802 is formed on the front surface of the third hole cover 800.

After the first through hole 100h is aligned with the protrusion 720 of the first hole cover 700 penetrating the third hole cover 800, the display panel 100 is inserted into the guide frame 300, 3 hole cover 800 as shown in FIG.

The panel driving circuit unit 200 connected to the pad unit 112 of the display panel 100 is bent and disposed on the rear surface of the housing member 500 and then the cover shield 600 is mounted on the rear surface of the housing member 500 And conceals the panel drive circuit unit 200 disposed on the rear surface of the housing member 500. [

Next, the front edge cover 1000 is coupled to the guide frame 300 to cover the second side edge portion of the display panel 100 and the side surface of the guide frame 300.

As described above, in the first example of the present invention, the guide frame 300 is changed to a metal material, and the first hole cover 700 coupled to the rear surface of the housing member 500 is coupled to the guide frame 300, The guide frame 300 and the housing member 500 are coupled to each other in a cross-hook structure, thereby preventing the guide frame 300 from sagging, Stability can be enhanced.

8 is a cross-sectional view taken along the line IV-IV 'shown in FIG. 7, and FIG. 9 is a cross-sectional view taken along the line II-II' of FIG. 2 is a view for explaining a curved surface portion and a third curved surface portion of the housing member. In this variant display device according to the second example of the present invention, the coupling structure between the second curved surface portion of the guide frame and the third curved surface portion of the housing member is added . Accordingly, in the following description, the redundant description of the remaining configurations except for the additional configurations for coupling between the second curved surface portion of the guide frame and the third curved surface portion of the housing member will be omitted.

7 to 9, a housing member 500 of a display device according to a second exemplary embodiment of the present invention includes a housing plate 510, a third curved portion 520, a housing side wall 530, Member 540, a stopper 550, a curved housing side wall 560, a first hook member 570, and a curved stopper 580. In the configuration of the housing member 500, other configurations except for the curved housing side wall 560, the first hook member 570, and the curved surface stopper 580 are the same as those of the first embodiment of the above- Member, so that a duplicate description thereof will be omitted.

The curved housing side wall 560 is bent from an edge portion of the third curved surface portion 520 to support the second curved surface portion 320 of the guide frame 300. Since the housing member 500 is made of a metal material, the curved housing side wall 560 having a curved shape can be bent at the same height as the housing side wall 530 due to wrinkles during curved surface molding using L bending. Accordingly, the curved housing side wall 560 has a height lower than the height H of the housing side wall 530 by forming bending only by the L bendable height without wrinkles.

The first hook member 570 is provided on the curved housing side wall 560 and is engaged with the second guide side wall 340 of the guide frame 300. For example, the first hook member 570 may be a hook protrusion protruding from the outer wall of the curved housing side wall 560.

The curved surface stopper 580 is bent from an edge portion of the third curved portion 520 to support the second guide side wall 340 so as to be spaced apart from and spaced apart from the curved housing side wall 560. Here, the curved surface stopper 580 may be spaced from the curved housing side wall 560 by the thickness of the second guide side wall 340. Accordingly, the second guide sidewall 340 is inserted between the curved housing side wall 560 and the curved surface stopper 580.

As described above, since the curved housing side wall 560 is provided in the housing member 500, the cover side wall 730 provided in the first hole cover 700 is omitted. The first hole cover 700 is formed in the form of a disk having a protrusion 720 and is coupled to the rear surface of the housing member 500 corresponding to the third curved surface portion 520, Do not wrap outer surface. At this time, the side surface of the first hole cover 700, that is, the outer surface of the cover plate 710, may be surrounded by the second guide side wall 340 of the guide frame 300.

The guide frame 300 of the display device according to the second embodiment of the present invention includes a panel supporting portion 310, a second curved portion 320, a first guide side wall 330, a second guide side wall 340, Includes a fastening member 350, a fixed side wall 360, a second hook member 370, and an insertion side wall 380. In the structure of the guide frame 300, the remaining structures except for the second hook member 370 and the insertion side wall 380 are the same as those of the guide frame of the display device according to the first embodiment of the present invention, Duplicate description will be omitted.

The second hook member 370 is provided on the second guide side wall 340 of the guide frame 300 and is engaged with the first hook member 570 of the housing member 500. For example, the second hook member 370 may be a hook hole provided on the second guide side wall 340 so that the first hook member 570 can be inserted.

The insertion side wall 380 is bent concavely from the second guide side wall 340 facing the curved stopper 580 and inserted between the curved housing side wall 560 and the curved surface stopper 580. The curved surface stopper 580 supports the rear side (or the lower surface) of the insertion side wall 380 while wrapping the outer side wall of the insertion side wall 380 while preventing the second guide side wall 340 from sagging, 340 are fixed.

The second curved surface portion 320 of the guide frame 300 and the third curved surface portion 520 of the housing member 500 may be attached to the first hook member 570, the curved surface stopper 580, 370, and insert side walls 380 in an additional cross-hook structure. That is, the insertion side wall 380 provided on the second guide side wall 340 is inserted between the curved housing side wall 560 and the curved surface stopper 580, and the first hook member 570 and the second hook member 370 The second guide sidewall 340 surrounds the curved housing side wall 560 while the curved stopper 580 covers the outer side wall of the second guide sidewall 340 while supporting the inserted sidewall 380. As a result, the second guide sidewall 340 and the curved housing side wall 560 are staggered from each other by the insertion side wall 380 and the curved surface stopper 580 so that the second guide side wall 340 and the curved housing side wall The second guide sidewall 340 surrounding the curved housing side wall 560 is prevented from being opened from the curved housing side wall 560 and the sagging phenomenon of the guide frame 300 is prevented Can be prevented.

The second embodiment of the present invention as described above has a structure in which the second curved surface portion 320 of the guide frame 300 and the third curved surface portion 520 of the housing member 500 are joined by the cross- It is possible to further enhance the coupling stability between the releasing mechanisms.

Since the physical display device can be provided with a physical auxiliary device in the hollow portion provided in the display area by the first and second hole covers 700 and 900, The present invention can be applied to a vehicle or domestic appliance that is fused with each other, and the degree of freedom of design of a vehicle appliance or a home appliance can be improved.

The display panel 100 of the display device according to the present invention is not limited to the liquid crystal display device including the backlight unit 400, Or a plasma display panel, in which case the backlight unit 400 is omitted.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the general inventive concept as defined by the appended claims and their equivalents. Will be clear to those who have knowledge of. Therefore, the scope of the present invention is defined by the appended claims, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be interpreted as being included in the scope of the present invention.

100: display panel 200: panel drive circuit part
300: guide frame 400: backlight unit
500: housing member 600: cover shield
700: first hole cover 800: third hole cover
900: Second hole cover 1000: Front edge cover

Claims (18)

A display panel having a first through hole provided in a display area in which an image is displayed;
A guide frame coupled to a rear edge of the display panel;
A housing member having a second through hole overlapping the first through hole and supporting the guide frame;
A first hole cover coupled to a rear surface of the housing member and having a projection penetrating through the second through hole and inserted into the first through hole; And
And a second hole cover disposed on a front surface of the display panel to cover the periphery of the first through hole to be engaged with the protrusion,
The protrusion of the first hole cover has a first hollow portion overlapping the first through hole,
And the second hole cover has a second hollow portion overlapping with the one hollow portion. The method according to claim 1,
Wherein each of the housing member and the guide frame includes a metal material,
And the first hole cover is made of a material different from that of the housing member. The method according to claim 1,
Wherein the first hole cover includes a cover plate coupled to the rear surface of the housing member to overlap with the periphery of the second through hole,
Wherein a protrusion of the first hole cover protrudes from the cover plate so as to have the first hollow portion to support the second hole cover. The method of claim 3,
Wherein the display panel includes a first curved portion protruding from one side so as to surround a part of the first through hole,
Wherein the guide frame has a second curved surface portion protruding from one side so as to engage with a rear edge portion of the first curved surface portion,
Wherein the first hole cover includes a cover side wall provided in a curved shape at an outer edge portion of the cover plate to support the second curved surface portion. 5. The method of claim 4,
The housing member
A housing plate having the second through-hole and covering a rear surface of the display panel;
A third curved surface portion protruding from one side of the housing plate to overlap the first curved surface portion; And
And a housing side wall bent from an edge portion of the housing plate except for the third curved surface portion and joined with a side surface of the guide frame. 6. The method of claim 5,
The guide frame
A panel supporting portion connected to the second curved surface portion and coupled to a rear edge portion of the display panel except a first curved portion of the display panel;
A first guide sidewall provided on a rear surface of the panel supporting portion to be coupled to the housing side wall; And
And a second guide side wall provided on a rear surface of the second curved surface portion so as to surround the side surface of the cover side wall. The method of claim 3,
Wherein the display panel includes a first curved portion protruding from one side so as to surround a part of the first through hole,
Wherein the guide frame has a second curved surface portion protruding from one side so as to engage with a rear edge portion of the first curved surface portion,
The housing member
A housing plate having the second through-hole and covering a rear surface of the display panel;
A third curved surface portion protruding from one side of the housing plate to overlap the first curved surface portion; And
A housing side wall bent from an edge portion of the housing plate except for the third curved surface portion and engaged with a side surface of the guide frame; And
And a curved housing side wall bent from an edge portion of the third curved portion to support the second curved portion. 8. The method of claim 7,
The guide frame
A panel supporting portion connected to the second curved surface portion and coupled to a rear edge portion of the display panel except a first curved portion of the display panel;
A first guide side wall provided on a rear surface of the panel supporting portion and coupled to the housing side wall; And
And a second guide side wall provided on a rear surface of the second curved surface portion and surrounding the curved housing side wall. 9. The method of claim 8,
The housing member
And a curved surface stopper which is bent from an edge portion of the third curved surface portion to support the second guide sidewall so as to be spaced apart from and spaced apart from the curved housing side wall,
And the second guide sidewall is inserted between the curved housing side wall and the curved surface stopper. 10. The method of claim 9,
The housing member further includes a first hook member provided on a side wall of the curved housing,
The guide frame
A second hook member provided on the second guide side wall to be engaged with the first hook member; And
And an insertion side wall bent concavely from the second guide side wall and inserted between the curved housing side wall and the curved surface stopper. 11. A method according to any one of claims 5, 6, 8, 9, and 10,
The housing member further includes a stopper bent from an edge portion of the housing plate except for the third curved surface portion so as to be spaced apart from the housing side wall and supporting the first guide side wall,
And the first guide sidewall is inserted between the housing side wall and the stopper. 12. The method of claim 11,
The housing member further includes a first fastening member provided on the side wall of the housing,
The guide frame
A second fastening member provided on the first guide sidewall to be fastened to the first fastening member; And
And a fixed sidewall which is bent concavely from the first guide sidewall facing the stopper and inserted between the housing side wall and the stopper. 11. The method according to any one of claims 1 to 10,
And a backlight unit disposed between the housing member and the display panel, the protrusion of the first hole cover passing through the backlight unit. 14. The method of claim 13,
The backlight unit includes:
A light source housing disposed on a part of the bottom surface of the housing member;
A reflective sheet disposed on the light source housing and the housing member and having a first hole into which the protrusion is inserted;
A light guide member disposed on the reflective sheet and having a second hole overlapping the first hole;
A light source module having a plurality of light emitting diodes coupled to the light source housing so as to face a light entrance portion provided on an outer side surface of the light guide member; And
And an optical sheet portion disposed on the light guide member and having a third hole overlapping with the second hole. 15. The method of claim 14,
Wherein the backlight unit further comprises a first reflecting member disposed on an inner wall of the light guide member provided by the second hole or a side of a protrusion facing the inner wall of the light guide member. 15. The method of claim 14,
The backlight unit includes:
A first reflecting member disposed on an inner wall of the light guide member provided by the second hole or a side of a protrusion facing the inner wall of the light guide member; And
And a second reflecting member attached to the other outer side surface of the light guide member excluding the light entrance portion. 15. The method of claim 14,
Further comprising a third hole cover having a third hollow portion through which the protrusion penetrates and disposed on a front surface of the backlight unit to cover the periphery of the third hole,
Wherein the projection of the first hole cover further includes a cover engagement portion that is engaged with the third hole cover. 15. The method of claim 14,
Wherein the light source housing has a width that is at least half the short side width of the housing member but less than the short side width of the housing member.

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